A fast fluidized bed reactor, device and method for preparing propylene and C4 hydrocarbons from oxygen-containing compounds
A fluidized-bed reactor and the technology of the reactor are applied in the direction of producing hydrocarbons from oxygen-containing organic compounds, carbon compound catalysts, chemical instruments and methods, etc., and can solve the problems of low reaction rate of ethylene alkylation and the like
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Embodiment 1
[0061]This case is a comparative case, using figure 1 The device shown, but reactor gas-solid separator 1 (4) is not included in the fast fluidized bed reactor (1), and the regeneration riser (24) is directly connected to the dilute phase of the fast fluidized bed reactor (1) Area.
[0062] The fast fluidized bed reactor (1) contains 3 reactor feed distributors (3-1~3-3), the reactor heat collector (6) is placed outside the reactor shell (2), and the reactor steam The level of the inlet of lifter (8) is at the height of 2 / 3 dense phase zone. The reaction conditions in the dense phase zone of the fast fluidized bed reactor (1) are: the apparent linear velocity of the gas is about 3.0m / s, the reaction temperature is about 400°C, the reaction pressure is about 150kPa, and the bed density is about 80kg / m 3 .
[0063] The reaction conditions in the regeneration zone of the fluidized bed regenerator (14) are: the apparent linear velocity of the gas is about 1.0m / s, the regenerati...
Embodiment 2
[0070] use figure 1 In the shown device, the fast fluidized bed reactor (1) contains 3 reactor feed distributors (3-1~3-3), and the reactor heat collector (6) is placed in the reactor shell (2) Externally, the level of the inlet to the reactor stripper (8) is at the level of 2 / 3 of the dense phase zone. The reaction conditions in the dense phase zone of the fast fluidized bed reactor (1) are: the apparent linear velocity of the gas is about 3.0m / s, the reaction temperature is about 400°C, the reaction pressure is about 150kPa, and the bed density is about 80kg / m 3 .
[0071] The reaction conditions in the regeneration zone of the fluidized bed regenerator (14) are: the apparent linear velocity of the gas is about 1.0m / s, the regeneration temperature is about 650°C, the regeneration pressure is about 150kPa, and the bed density is about 350kg / m 3 .
[0072] The catalyst contains SAPO molecular sieve, the carbon content of the spent catalyst is about 7%, and the carbon conten...
Embodiment 3
[0079] use figure 1 In the shown device, the fast fluidized bed reactor (1) contains 4 reactor feed distributors (3-1~3-4), and the reactor heat collector (6) is placed in the reactor shell (2) Externally, the level of the inlet to the reactor stripper (8) is at the level of 3 / 4 of the dense phase zone. The reaction conditions in the dense phase zone of the fast fluidized bed reactor (1) are: the apparent linear velocity of the gas is about 5.0m / s, the reaction temperature is about 360°C, the reaction pressure is about 200kPa, and the bed density is about 50kg / m 3 .
[0080] The reaction conditions in the regeneration zone of the fluidized bed regenerator (14) are: the apparent linear velocity of the gas is about 1.2m / s, the regeneration temperature is about 700°C, the regeneration pressure is about 200kPa, and the bed density is about 300kg / m 3 .
[0081] The catalyst contains SAPO molecular sieve, the carbon content of the spent catalyst is about 8%, and the carbon conten...
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